The Effects of Smoking on the Prostates of Rats which are Exposed to Cigarette Smoke

Background: Smoking is a hallmark preventable health issue worldwide. The role of smoking in the aetiology of prostate cancers remains a lack of consensus. Methods and material: 100 male albino Wistar rats were used. The smoking group (n=40) was exposed to cigarette smoke for 2 hours per day for 8 weeks. The rest were set aside as a control group (n=60). At the end of 8 weeks, the rats were sacrificed and haemoglobin and serum cotinine values were measured. The prostate glands were excised and dorsolateral strips were prepared for in vitro examination. After application of 80 mM KCl, carbachol, and phenylephrine, respectively, contraction values were obtained and calculated in grams. Prostate tissues were stained using p53, bcl-2, cyclin D, and c-erb-B2 immunohistochemical and Hematoxylin-Eosin gram staining. Results: In the smoking group, the mean haemoglobin value was found out as 16.5 mg/dl, and 11.5 mg/dl in the control group respectively. The cotinine values were determined to be 76.43 ng/ml in the smoking group and <10 ng/ml in the control group. The prostate contractions in the smoking group were seen significantly lower than the contractions in the control group After immunohistochemical investigation of the prostate tissues, meaningful acinar dilatation and atrophy with Hematoxylin-Eosin staining were found out. Foam cells were observed in the smoking group. Conclusions: In our study, we determined that smoking significantly decreased prostate contraction. The findings after immunohistochemical investigation may help to clarify the effect of smoking on prostate cancer

Effects of olanzapine and clozapine on memory acquisition, consolidation and retrieval in mice using the elevated plus maze test

Clozapine and olanzapine are antipsychotic drugs commonly used to treat schizophrenia and psychosis; however, few studies have investigated their effects on cognitive function using animal models. Thus, the effects of olanzapine and clozapine on memory acquisition, consolidation and retrieval were investigated in naive mice using a modified elevated plus maze (mEPM) task. Olanzapine (0.15 and 0.30 mg/kg) and clozapine (0.5 and 1 mg/kg) were injected intraperitoneally (i.p.) into male Balb-c mice before training, immediately after training or before the second day of the trial. Our results showed that both olanzapine and clozapine disrupted the acquisition of spatial memory. In addition, clozapine impaired the consolidation of spatial memory, while olanzapine had no effect. Furthermore, olanzapine and clozapine significantly disrupted memory retrieval in naive mice. Thus, these results at least suggest that olanzapine can be a superior treatment for schizophrenia compared to clozapine. (C) 2011 Elsevier Ireland Ltd. All rights reserved

Effects of long-term treatment with haloperidol, clozapine and aripiprazole on mice isolated vas deferens

These results revealed that induced contractions of vas deferens were affected after chronic treatment with haloperidol and clozapine but not aripiprazole. Serotonergic, noradrenergic and purinergic receptors may, at least in part, contribute to changes in vas deferens contractions in mice with chronic treatment of haloperidol and clozapine but not aripiprazole

Effects of ziprasidone, SCH23390 and SB277011 on spatial memory in the Morris water maze test in naive and MK-801 treated mice

Conclusions: The second-generation antipsychotic drug ziprasidone and D1 antagonist SCH23390, but not the D3 antagonist SB277011, might be clinically useful for the treatment of cognitive impairments in patients with schizophrenia. (C) 2015 Elsevier Inc. All rights reserved

The Influence of Atypical Antipsychotic Drugs on Vas Deferens in Mice

Objective: Several classes of prescription drugs contribute to the sexual dysfunction in men that have been found especially in the antipsychotic drugs. Varieties of mechanisms are likely to contribute to the antipsychotic-related sexual dysfunction including hyperprolactinemia and antagonism of some neurotransmitter receptors. Implications for future research, atypical antipsychotics should be strongly taken into account. Material and Method: Male mice were treated by intraperitoneal injection (IP injection) of drugs for 21 days. The effects of saline, quetiapine, olanzapine, and risperidone were investigated on serotonin, noradrenaline (NA), adenosine triphosphate (ATP) and potassium chloride (KCl) which induced contractions of the vas deferens. Results: Serotonin-induced contractile responses were significantly increased in the epididymal and prostatic portion of the vas deferens obtained from the risperidone-treated group. The E-max value for serotonin was significantly higher in prostatic and epididymal portions of the mice vas deferens obtained from the risperidone-treated group than the control group. However, olanzapine and quetiapine treatment had no effect on serotonin responses in both epididymal and prostatic portions of the mice vas deferens. The risperidone treatment significantly inhibited both noradrenaline and ATP-induced contractions of the prostatic and epididymal portions of the mice vas deferens. There were no significant differences in KCl-induced contractile responses among the groups. Conclusion: It can be concluded that only risperidone could impair sexual competence in the male mice. Serotonergic, noradrenergic and purinergic receptors may contribute to the changes in vas deferens contractions in mice with chronic treatment of risperidone but not olanzapine and quetiapine. This study will help clinicians make a purpose-oriented choice of which antipsychotic drug to use